Local Calling Guide

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NPA: 603 [Rate centres in NPA 603] [Dial plan for NPA 603]

NXX: 801

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-801 A Milford NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-801 0 Milford NH   6386 BELL ATLANTIC MOBILE, INC 122      
603-801 1 Milford NH   6386 BELL ATLANTIC MOBILE, INC 122      
603-801 2 Milford NH   6386 BELL ATLANTIC MOBILE, INC 122      
603-801 3 Milford NH   6386 BELL ATLANTIC MOBILE, INC 122      
603-801 4 Milford NH   6386 BELL ATLANTIC MOBILE, INC 122      
603-801 5 Milford NH   6386 BELL ATLANTIC MOBILE, INC 122   2003-08-03   
603-801 6 Milford NH   6386 BELL ATLANTIC MOBILE, INC 122   2003-11-03   
603-801 7 Milford NH   6386 BELL ATLANTIC MOBILE, INC 122      
603-801 8 Milford NH   6386 BELL ATLANTIC MOBILE, INC 122      
603-801 9 Milford NH   6386 BELL ATLANTIC MOBILE, INC 122      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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